CopyBuffer return Correct Array size but all 0.0

[AlternativeCodeFX]

Hello to everyone, 

I'm new with MQL5 and I'd like to develope an EX with an Indicator similar to Zig Zag.

But unfortunatly I do not understand why all data received ar filled to 0.

If I try to change buffer all data are Ok but with buffer "buffer_1" no.

I've tried  "PeakBuffer" and everithink works fine.

***

In this moment If I try ArraySize( buffer ) is 2 but all data are 0.0, and i'm sure that  buffer_1 has value different from 0.0.

If I try to change   buffer_1 with PeakBuffer eveythinks is working.

Please anyone could help me?

Thanks in advance

Gianluc

[Alexandre Borela]

You have to check the value returned in the "copy" variable here:

int copy=CopyBuffer(indicator_handle,0,0,2, buffer );

if (copy < 0) {
  Print("Still hasn't copied the data");
  return;
}

[Vladimir Karputov]

AlternativeCodeFX:

Please insert the code correctly: when editing a message, press the button    and paste your code into the pop-up window.